CN102070260B - Wastewater recycling method and device for collection pipe section of dry distillation system for oil shale - Google Patents
Wastewater recycling method and device for collection pipe section of dry distillation system for oil shale Download PDFInfo
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- CN102070260B CN102070260B CN 201010584385 CN201010584385A CN102070260B CN 102070260 B CN102070260 B CN 102070260B CN 201010584385 CN201010584385 CN 201010584385 CN 201010584385 A CN201010584385 A CN 201010584385A CN 102070260 B CN102070260 B CN 102070260B
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Abstract
The invention relates to a wastewater recycling method and device for a collection pipe section of a dry distillation system for oil shale. The wastewater recycling method for a collection pipe section of a dry distillation system for oil shale, which is provided by the invention, comprises the following steps: firstly, settling dry distillation wastewater at the outlet of the collection pipe, and then, removing dust by cyclone to remove oil sludge to obtain circulating water subjected to primary purification; removing oil by cyclone in the obtained circulating water subjected to primary purification to remove oil stain to obtain circulating water subjected to secondary purification; and returning the obtained circulating water subjected to secondary purification to the collection pipe to be recycled as washing water and cooling water. The invention also provides a wastewater recycling device for the collection pipe section of the dry distillation system for oil shale.
Description
Technical field
The invention belongs to petrochemical complex and field of Environment Protection, relate to a kind of processing method of oil shale distillation system set pipeline section cycling utilization of wastewater, be applicable to collecting tubule outlet waste water in the oil shale distillation process is processed.Specifically, the invention provides method and the device of set pipeline section recirculated water oil removing desilt in the oil shale distillation system being processed also recycle.
Background technology
Resinous shale is the coal associated resources, utilize oil shale distillation technology refining crude oil and byproduct thereof, has once supported China in the economic construction in oil-poor period, but also once once year by year atrophy of its research and development.At the beginning of the nineties in last century, Fushun Mining Group is introduced circular economy concept, restarts comprehensive utilization and the research and development of resinous shale, wherein with oil shale oil-refining emphasis the most.
When resinous shale produces shale oil through destructive distillation, also can produce a large amount of retort sewages, the retort sewage of set pipeline section mainly consists of the following components:
(1) associated water in the gas mixture of destructive distillation furnace roof derivation: it is comprised of raw shale oil band water, main air band water, basin vaporize water and small amount Heshui, this part associated water is through the whole process of oil shale distillation, form with water vapor exists, condensing into gradually water after advancing people's gas mixture collecting tubule, is the main source of retort sewage;
(2) pair set pipeline section destructive distillation product processing flush discharge: pair set pipeline section pyrolyzate washs processing, reclaims the water that produces in the shale oil process.
Retort sewage be a kind ofly contain that pollutant kind is various, complicated, sewage that concentration is higher, wherein except the common petroleum substance and volatile phenol compound of general natural oil factory, also contain relatively large organosulfur, organonitrogen and the environmental pollutant such as naphthenic compound and condensed-nuclei aromatics, being difficult organic sewage recognized in the world, also is one of industry sewage of state key introduction improvement technology.Successively shale retorting sewage has been carried out laboratory treatment both at home and abroad, but not ideal enough and stranded because of the economic benefit of the higher and corresponding generation of facility investment, the sewage disposal difficulty is larger.
In at present common oil shale distillation production process, the coke(oven)gas of gas retort outlet and tar enter the greasy filth (mixture of mink cell focus and dust) that is recycled in the collecting tubule in the water wash removal gas under normal pressure, washing process also is the coke(oven)gas process that cooling separates with coal tar.
In collection mud tank, to carry out the plain sedimentation that oil-containing contains dirt water just directly to return collecting tubule for the treatment process of set pipeline section retort sewage generally.That is, collecting tubule has certain gradient, and washing water, greasy filth and shale oil after the drip washing are flowed in the collection mud tank along collecting tubule, carries out precipitate and separate.Water in the collection mud tank enters collecting tubule by the extraction of collection mud tank water pump and recycles, and collection mud tank is regularly discharged greasy filth and sent building materials partly to fully utilize.
Although so do the zero release that has realized sewage, and saved a large amount of cost of sewage disposal, exist equipment corrosion serious, the problem of line clogging and corrosion.
Up to now, a kind of method that can effectively process oil shale distillation system set pipeline section waste water is not yet developed in this area.
Therefore, this area is in the urgent need to developing a kind of method that can effectively process oil shale distillation system set pipeline section waste water, and it is serious that the method can solve the equipment corrosion that exists in the prior art, the problem of line clogging and corrosion.
Summary of the invention
The invention provides a kind of new oil shale distillation system set pipeline section wastewater recycling method and device, part of contaminated water directly can be returned collecting tubule after suitably processing, recycle as the cooling washing water, not only solved the difficult problem of sewage disposal, a large amount of fresh waters have also been saved, accomplish the recycle of water resources, greatly reduced the loss of the energy, thereby overcome the defective that prior art exists.
On the one hand, the invention provides a kind of oil shale distillation system set pipeline section wastewater recycling method, the method comprises:
The destructive distillation waste water of pair set pipe outlet precipitates first, then carries out rotational flow dust-removing, to remove greasy filth, obtains the recirculated water of primary purification;
Recirculated water to the primary purification of gained carries out cyclone deoiling, with except degreasing, obtains the recirculated water of secondary-cleaned;
The recirculated water of the secondary-cleaned of gained is returned collecting tubule, re-use as washing water and water coolant.
One preferred embodiment in, the silt content of the recirculated water of the secondary-cleaned of gained is 0, oleaginousness is lower than 0.001 volume %, with the volumeter of the recirculated water of the secondary-cleaned of gained.
On the other hand, the invention provides a kind of oil shale distillation system set pipeline section waste water circulation utilized device, this device comprises:
The collection mud tank that is connected with the water outlet of collecting tubule, the destructive distillation waste water that is used for the outlet of pair set pipe precipitates, and the collecting tubule fly-ash separator that is connected with the water outlet of collection mud tank, is used for the destructive distillation waste water through precipitation is carried out rotational flow dust-removing, to remove greasy filth, obtain the recirculated water of primary purification;
The collecting tubule oil eliminator that is connected with the water outlet of described collecting tubule fly-ash separator is used for the recirculated water of the primary purification of gained is carried out cyclone deoiling, with except degreasing, obtains the recirculated water of secondary-cleaned;
Wherein, the recirculated water of the secondary-cleaned of gained returns collecting tubule, re-uses as washing water and water coolant.
One preferred embodiment in, described collecting tubule fly-ash separator and collection mud tank arranged in series, described fly-ash separator is selected from cyclone dust.
Another preferred embodiment in, described collecting tubule oil eliminator and collecting tubule duster parallels arrange, described oil eliminator is selected from degreaser cyclone.
Another preferred embodiment in, described collecting tubule fly-ash separator uses in the mode of single-stage or plural serial stage combination.
Another preferred embodiment in, described collecting tubule oil eliminator uses in the mode of single-stage or plural serial stage combination.
Another preferred embodiment in, this device also comprises the pump that is arranged between collection mud tank and the collecting tubule fly-ash separator, sends into the collecting tubule fly-ash separator for the water circulating pump that will collect mud tank water outlet.
Description of drawings
Fig. 1 is the schematic flow sheet according to the oil shale distillation system set pipeline section cycling utilization of wastewater of an embodiment of the invention.
Embodiment
The present inventor finds through after the extensive and deep research, the dry-run tar gas of oil shale distillation system washs by recirculated water drip washing tar and tar gas in collecting tubule and cools off at the set pipeline section, in this process, produce a large amount of oil-containings and contained mud waste water, if set up the oil removing desludging device at oil shale distillation system collecting tubule water outlet, can effectively remove wherein contained greasy filth and greasy dirt, thereby accomplish the water purification that circulates, return each device through the recirculated water after the cyclonic separation purification and do washing and water coolant use, avoid impurity obstruction or corrosion pipeline and equipment in the water, reduced difficulty and the treatment capacity of sewage disposal.Based on above-mentioned discovery, the present invention is accomplished.
Technical conceive of the present invention is as follows:
1. partly cool off the greasy filth that contains a large amount of shale dust and empyreumatic oil formation in oil-mud of producing with washing process-water mixture at the collecting tubule of oil shale distillation process, carry out the substep desilt by collection mud tank and collecting tubule fly-ash separator are set, can realize well that recirculated water removes the purpose of greasy filth;
2. in the outlet of collecting tubule fly-ash separator the collecting tubule oil eliminator is set, the oily(waste)water of processing through desilt is carried out the processing of wipe oil, can realize well that recirculated water removes the purpose of greasy dirt;
3. the recirculated water after the oil removing desilt being purified is back to collecting tubule and reuses as washing water and water coolant, continues the work that wherein coke(oven)gas and tar are lowered the temperature and washed.
In a first aspect of the present invention, a kind of method of oil shale distillation system cycling utilization of wastewater is provided, the method comprises:
The destructive distillation waste water of collecting tubule outlet enters collection mud tank, and precipitation is fallen partial volume and the larger greasy filth of density; Then the destructive distillation waste water that collects the outlet of mud tank enters the collecting tubule fly-ash separator, further removes residue greasy filth, obtains the recirculated water that purifies through preliminary desilt;
The recirculated water of collecting tubule fly-ash separator outlet enters the collecting tubule oil eliminator, removes greasy dirt wherein, the recirculated water after being purified;
The recirculated water of collecting tubule oil eliminator outlet returns collecting tubule, re-uses as washing water and water coolant.
In the present invention, the wash cooling water of set pipeline section is after carrying out certain washing and cooling to tar gas and tar, substep removes wherein greasy filth and greasy dirt, and returns in the collecting tubule and use as washing water and water coolant, form comparatively complete and independently the wash cooling water circuit utilize flow process.
In the present invention, adopt substep greasy filth removal method, at first in the collecting tubule outlet collection mud tank is set, precipitation is fallen part greasy filth, by the collecting tubule fly-ash separator is set, removes residue greasy filth thereafter.
In the present invention, enter the collecting tubule oil eliminator through the recirculated water after the desilt processing, remove the greasy dirt in the recirculated water.
In the present invention, return the collecting tubule top through the recirculated water after the purifying treatment, drip washing and cooling destructive distillation oil gas wherein, the silt content of this recirculated water is 0, oleaginousness is lower than 1%.
In a second aspect of the present invention, a kind of device for oil shale distillation system set pipeline section cycling utilization of wastewater is provided, this device comprises:
Be used for the collection mud tank of the preliminary desilt of destructive distillation cycling utilization of wastewater, be arranged at the collecting tubule water outlet;
The collecting tubule fly-ash separator that links to each other with described collection mud tank water outlet is used for destructive distillation waste water desilt;
The collecting tubule oil eliminator that links to each other with described collecting tubule fly-ash separator water outlet is used for the oil removing of destructive distillation waste water.
In the present invention, described collecting tubule fly-ash separator is positioned at collection mud tank water outlet, the optional spin current fly-ash separator of this fly-ash separator or other all kinds of solid-liquid separating equipments.
In the present invention, described collecting tubule fly-ash separator water outlet and subsequent set pipe oil eliminator arranged in series, the optional spin current oil eliminator of this oil eliminator or other all kinds of oily water separating equipments.
In the present invention, described collecting tubule oil eliminator or collecting tubule fly-ash separator use in the mode of single-stage or plural serial stage combination.
Method and apparatus of the present invention can also be used for the substep sepn process of other oil-containing water mixture.
Below referring to accompanying drawing.
Fig. 1 is the schematic flow sheet according to the oil shale distillation system set pipeline section cycling utilization of wastewater of an embodiment of the invention.As shown in Figure 1, gas retort outlet oil gas enters collecting tubule 1 under normal pressure, be recycled the water wash cooling; Tar gas is with after the coal mine gas carrier contacts in recirculated water and the tower, tar gas cooling is wherein condensed into destructive distillation crude oil, the greasy filth of simultaneously flush away shale dust formation wherein, oil-water that this process produces-mud three-phase mixture is discharged (part oil gas goes out collecting tubule 1 and enters the further part processing) as destructive distillation waste water from water outlet; Destructive distillation waste water enters collection mud tank 2, and the greasy filth that wherein density and volume are larger precipitates, and oil-water mixture carries residue greasy filth and discharges, and the first step greasy filth just separates to be finished; Destructive distillation waste water is squeezed into collecting tubule fly-ash separator 4 with pump 3, and the strong vortex flow field that produces by high pressure and centrifugal force remove wherein greasy filth and enters the greasy filth treating part and further process; Destructive distillation waste water enters collecting tubule oil eliminator 5 from the overflow port of collecting tubule fly-ash separator 4, and the strong vortex flow field that produces by high pressure and centrifugal force remove wherein greasy dirt and enters follow-up oil removal from the overflow port of collecting tubule oil eliminator 5 and process; The destructive distillation waste water that the above-mentioned oil removing desilt of process is processed has possessed the condition as recirculated water substantially, and circulation is returned collecting tubule and used as washing water and water coolant.
The major advantage of method and apparatus of the present invention is:
The present invention adopts liquid-liquid separation technology and solid-liquid isolation technique that the oil-containing of oil shale distillation system is contained mud waste water to have carried out purification and recycle, avoided impurity obstruction or corrosion pipeline and equipment in the water, reduced difficulty and the treatment capacity of sewage disposal.The inventive method technique is advanced, and equipment investment cost is lower, and floor space is little, and failure rate is low can effectively reduce the oil-cement content in the recirculated water, and relevant energy consumption.
Embodiment
Further set forth the present invention below in conjunction with specific embodiment.But, should be understood that these embodiment only are used for explanation the present invention and do not consist of limitation of the scope of the invention.The test method of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Except as otherwise noted, all per-cent and umber are by weight.
Embodiment 1: dry distillation apparatus for oil shale energy-conserving and emission-cutting technology transformation project
Technical process:
This project adopts device of the present invention, and its technical process as shown in Figure 1.
The cooling washing water silt content of set pipeline section is higher, need to carry out dust removal process, to prevent that greasy filth from stopping up and the etching process pipeline, the greasy filth that the set pipeline section can be produced is removed by collection mud tank and collecting tubule fly-ash separator are set, and then passes into the collecting tubule oil eliminator and carry out waste water and remove oil purification.
Gas retort outlet oil gas enters collecting tubule 1 under normal pressure, be recycled the water wash cooling; Tar gas is with after the coal mine gas carrier contact in recirculated water and the tower, and wherein tar gas cooling is condensed into destructive distillation crude oil, the greasy filth that forms of flush away shale dust wherein simultaneously, and the oil-water of this process generation-mud three-phase mixture is discharged from water outlet as destructive distillation waste water;
Destructive distillation waste water enters collection mud tank 2, and the greasy filth that wherein density and volume are larger precipitates, and oil-water mixture carries residue greasy filth and discharges, and the first step greasy filth just separates to be finished;
Destructive distillation waste water is squeezed into collecting tubule fly-ash separator 4 with pump 3, and described fly-ash separator is selected cyclone dust, and the strong vortex flow field that produces by high pressure and centrifugal force remove greasy filth wherein;
Destructive distillation waste water enters collecting tubule oil eliminator 5, and this oil eliminator is selected degreaser cyclone, and the strong vortex flow field that produces by high pressure and centrifugal force remove greasy dirt wherein;
The destructive distillation waste water that the above-mentioned oil removing desilt of process is processed has possessed the condition as recirculated water substantially, squeezes into collecting tubule by recycle pump and uses as washing water and water coolant.
And so forth circulation forms the wash cooling water circuit and utilizes system.
Technique effect:
In this technique, set pipeline section swirler inlet flow rate is 212650kg/h, and top head piece flow is 207650kg/h, and underflow opening is 5000kg/h, and wherein silt content (referring to the oil rock ash) is 416mg/L, and oleaginousness is 11952mg/L.Through the washing of set pipeline section with separate, silt content (refer to oil rock ash) is 95mg/L in its outlet gas mixture, oleaginousness is 3187mg/L, the greasy filth amount has respectively reduced approximately 75%; Through the washing of set pipeline section with separate, air tower and thereafter the separator inlet silt content of each tower (refer to oil rock ash) be 0, oleaginousness is 500mg/L; For recirculated water, eddy flow is from the import of fly-ash separator and the Pressure Drop 0.10MPa between the water outlet.When water inlet greasy filth content was not more than 2000mg/L, the water outlet muddy water concentration of cyclone dust was not more than 300mg/L; The greasy filth phase flow rate of analytical value (the being not more than 300mg/L) qualification rate of the regulation frequency 〉=90% and cyclone dust is not more than 10% of cyclone dust inlet flow rate.Pressure between the import of degreaser cyclone and the water outlet is reduced to 0.15-0.25MPa.When degreaser cyclone water inlet oleaginousness was not more than 2000mg/L, water outlet oil concentration was not more than 200mg/L, and when the water inlet oleaginousness was not more than 1000mg/L, water outlet oil concentration was not more than 150mg/L; Analytical value (be not more than 200mg/L or be not more than 150mg/L) qualification rate 〉=95% of the regulation frequency.The oil phase flow of degreaser cyclone is about 5% of degreaser cyclone inlet flow rate, and control is not more than 10%.Recirculated water has obtained good oil removing desilt effect.
All quote in this application as a reference at all documents that the present invention mentions, just as each piece document is quoted separately as a reference.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after having read above-mentioned teachings of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (4)
1. an oil shale distillation system is gathered the pipeline section wastewater recycling method, and the method comprises:
The destructive distillation waste water of pair set pipe outlet precipitates first, then carries out rotational flow dust-removing, to remove greasy filth, obtains the recirculated water of primary purification;
Recirculated water to the primary purification of gained carries out cyclone deoiling, with except degreasing, obtains the recirculated water of secondary-cleaned;
The recirculated water of the secondary-cleaned of gained is returned collecting tubule, re-uses as washing water and water coolant,
Wherein, the silt content of the recirculated water of the secondary-cleaned of gained is 0, and oleaginousness is lower than 0.001 volume %, with the volumeter of the recirculated water of the secondary-cleaned of gained.
2. an oil shale distillation system that is used for method claimed in claim 1 is gathered the pipeline section waste water circulation utilized device, and this device comprises:
The collection mud tank (2) that is connected with the water outlet of collecting tubule (1), the destructive distillation waste water that is used for the outlet of pair set pipe precipitates, and the collecting tubule fly-ash separator (4) that is connected with the water outlet of collection mud tank (2), be used for the destructive distillation waste water through precipitation is carried out rotational flow dust-removing, to remove greasy filth, obtain the recirculated water of primary purification;
The collecting tubule oil eliminator (5) that is connected with the water outlet of described collecting tubule fly-ash separator (4) is used for the recirculated water of the primary purification of gained is carried out cyclone deoiling, with except degreasing, obtains the recirculated water of secondary-cleaned;
Wherein, the recirculated water of the secondary-cleaned of gained returns collecting tubule (1), re-uses as washing water and water coolant; Described fly-ash separator is selected from cyclone dust, and described oil eliminator is selected from degreaser cyclone;
Described collecting tubule fly-ash separator and collection mud tank arranged in series;
Described collecting tubule oil eliminator and collecting tubule duster parallels are arranged;
This device also comprises the pump (3) that is arranged between collection mud tank and the collecting tubule fly-ash separator, sends into the collecting tubule fly-ash separator for the water circulating pump that will collect mud tank water outlet.
3. device as claimed in claim 2 is characterized in that, described collecting tubule fly-ash separator uses in the mode of single-stage or plural serial stage combination.
4. device as claimed in claim 2 is characterized in that, described collecting tubule oil eliminator uses in the mode of single-stage or plural serial stage combination.
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| EE05753B1 (en) | 2010-12-14 | 2015-07-15 | Shanghai Huachang Environmental Protection Co., Ltd. | Method and device for recycling of oil-water-sludge of oil shale dry distillation system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495056A (en) * | 1982-04-16 | 1985-01-22 | Standard Oil Company (Indiana) | Oil shale retorting and retort water purification process |
| CN101280201A (en) * | 2008-06-04 | 2008-10-08 | 珠海拓普能源科技有限公司 | Full cycle dry distillation process and system for producing shale oil from oil shale (coal) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101230283B (en) * | 2008-02-01 | 2011-06-08 | 抚顺矿业集团有限责任公司 | Oil shale retorting process reclaiming method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495056A (en) * | 1982-04-16 | 1985-01-22 | Standard Oil Company (Indiana) | Oil shale retorting and retort water purification process |
| CN101280201A (en) * | 2008-06-04 | 2008-10-08 | 珠海拓普能源科技有限公司 | Full cycle dry distillation process and system for producing shale oil from oil shale (coal) |
Non-Patent Citations (3)
| Title |
|---|
| 全清水等.磷系混凝剂在油页岩干馏废水处理中的应用.《南昌航空大学学报 （自然科学版）》.2008,第22卷(第3期),第90-93页. * |
| 刘丛茹等.油页岩干馏产燃料油和液化石油气的创新工艺.《辽宁化工》.2010,第39卷(第6期),第604-608页. * |
| 王海霞等.油页岩的干馏废水的处理.《化学工程师》.2009,(第7期),第35-36页. * |
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